This Handbook provides a theory-driven and policy-relevant analysis of terrorist offenders' deradicalization processes. It is the product of a multi-year collaboration between security studies scholars and counterterrorism practitioners. It offers a multidimensional strategy for the physical and cognitive disengagement of terrorists. It also charts a path for the community-based social reintegration of rehabilitated extremist offenders. The Handbook is targeted for both academics and practitioners in the field of counterterrorism. Those specializing in South Asia and the Global South will find this book a useful reference tool to comprehend and design the complex deradicalization processes and transform them into implementable practices.